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Maths
GCSE

given that f(x) = x^4 + 2x, find f'(x)

This is a simple differentiation question where we just differentiate by taking the power of the x and bringing that in front as a constant and then taking 1 off the power. So for the first term, x^4, we ...

SF
Answered by Sheheryar F. • Maths tutor
4114 Views

what is the largest stick can you fit into a cylinder, if the radius is 3cm and the length is 24cm. To 2d.p

If the radius is 3cm then the diameter is 6cm. the largest stick would be the hypotonuse between the length ans the base and therefore pythagoras is needed.Stick Length= sqrt(radius2+lenght

EE
Answered by Elizabeth E. • Maths tutor
2694 Views

A bag contains 8 oranges, 9 pears and 13 apples. What is the probability a pear is picked?

The probability of an event happening is defined as the number of outcomes you're looking for (in this example the number of pears, 9) divided by the total number of outcomes (i.e. the total number of fru...

MP
Answered by Marcus P. • Maths tutor
2846 Views

Expand the following brackets: a) 4(x+3) b) 3(x-1)-2(x+5) c) (y-3)^2 d) (y-2)^2 + (y+3)^2

a) 4x + 12For this question you must expand out the bracket by multiplying the subjects within by the number at the front. 4x + (4 x 3) = 4x + 12
b) x - 13Although this question...

JF
Answered by Jasmin F. • Maths tutor
4528 Views

Find the equation of the tangent to the curve y = x2 -3x +5 at the point (1,3).

Find the equation of the tangent to the curve y = x2 -3x +5 at the point (1,3).The tangent is a straight line of the form y = mx+cTo find the gradient, m, we first differentiate the function:dy...

TD
Answered by Tilly D. • Maths tutor
6499 Views

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